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प्रश्न
Interpret the following graph:
उत्तर
ln this graph portion O to A represents motion with acceleration, A to E represents motion with uniform velocity, 8 to C represents motion with acceleration.
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संबंधित प्रश्न
Define acceleration. State its unit.
The velocity-time graph for a uniformly retarded body is a straight line inclined to the time axis with an obtuse angle. How is retardation calculated from the velocity-time graph?
Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts AB, BC and CD.
(a) Is the magnitude of acceleration higher or lower than that of retardation ? Give a reason .
(b) Compare the magnitude of acceleration and retardation .
A space craft flying in a straight course with velocity of 75 km s-1 fires its rocket motors for 6.0 s. At the end of this time its speed is 120 km s-1 in the same direction.
Find
(i) The space craft's average acceleration while the motors were firing
(ii) The distance travelled by the space craft in the first 10 s after the rocket motors were started, the motors being in action for only 6 s.
From the velocity – time graph given below, calculate deceleration in region BC.
Write the SI unit of retardation.
The speed of a car increases from 10 km/h to 64 km/h in 10 seconds. What will be its acceleration?
State if the following situation is possible:
A body moving with a constant velocity in an accelerated motion.
Negative acceleration is called ______.
m/s2 is the unit of ______.
